Serious question: Is this a special 64-bit edition, or is it just version number 64? I wondered this yesterday because suffixing with "64" is a common way to d

Serious question: Is this a special 64-bit edition, or is it just version number 64? I wondered this yesterday because suffixing with "64" is a common way to denote such a thing. I looked into it and as far as I could tell, no, it's just version 64 of Firefox, so I mentioned that in an attempting-to-be-helpful comment here, but it got downvoted. So now I'm wondering if my research was wrong. Can anyone clarify, please? I'm really confused about this now.